Avoiding Hip Instability and Limb Length Discrepancy After Total Hip Arthroplasty

Peter K. Sculco, Umberto Cottino, Matthew Abdel, Rafael J. Sierra

Research output: Contribution to journalReview articlepeer-review

12 Scopus citations


Two complications after total hip arthroplasty (THA) are hip instability and limb length discrepancy; instability is a common indication for revision THA. The goal of a successful THA is to maximize impingement-free range of motion, recreate appropriate offset, and equalize limb length discrepancies to produce a pain-free and dynamically stable THA. In this article, the patient risk factors for dislocation and limb length discrepancy, key elements of the preoperative template, the anatomic landmarks for accurate component placement, the leg positions for soft tissue stability testing, and the management of postoperative instability are reviewed.

Original languageEnglish (US)
Pages (from-to)327-334
Number of pages8
JournalOrthopedic Clinics of North America
Issue number2
StatePublished - Apr 1 2016


  • Component position
  • Instability
  • Limb length discrepancy
  • Preoperative templating
  • Total hip arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Medicine(all)


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